For years now I have been experiencing pain in the same place - lower, left abdomen. It isn't severe or constant. In fact I only very occasionally notice it during a bm (particularly if straining). It feels like a short, sharp twinge. Any ideas what it could be? The pain doesn't bother me but the fact that it's in the same place makes me think there could be something there. I had a colonoscopy about 7 years ago which came back clear and I think I experienced that pain then. Any ideas?